20305004453159 has 2 divisors, whose sum is σ = 20305004453160. Its totient is φ = 20305004453158.

The previous prime is 20305004453117. The next prime is 20305004453231. The reversal of 20305004453159 is 95135440050302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20305004453159 - 2¹² = 20305004449063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20305004453659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10152502226579 + 10152502226580.

It is an arithmetic number, because the mean of its divisors is an integer number (10152502226580).

Almost surely, 2^{20305004453159} is an apocalyptic number.

20305004453159 is a deficient number, since it is larger than the sum of its proper divisors (1).

20305004453159 is an equidigital number, since it uses as much as digits as its factorization.

20305004453159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 20305004453159 in words is "twenty trillion, three hundred five billion, four million, four hundred fifty-three thousand, one hundred fifty-nine".